1. Create database
Save this DB details
2. Upload script zip file via ftp to your domain public_html directory, rename it to script.zip
Extract this file: autoinstall and upload autoinstall.php also into public_html directory.
Start this autoinstall file directly from browser, link like:
http://your-website-domain.com/autoinstall.php
Of course, change your-website-domain.com with your real domain
After that open http://your-website-domain.com
Now you are ready to install script:
Save provided details and open your website: